SECTION 271500 - COMMUNICATIONS HORIZONTAL CABLING
PART 1 - GENERAL
1.1
RELATED DOCUMENTS
A.
Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
B.
BICSI Telecommunications Distribution Methods Manual (TDMM), Eleventh Edition.
1.2
SUMMARY
A.
Section Includes:
1.
2.
3.
4.
B.
Related Requirements:
1.
2.
1.3
UTP cabling.
Coaxial cable.
Cable connecting hardware, patch panels, and cross-connects.
Telecommunications outlet/connectors.
Section 271300 "Communications Backbone Cabling" for voice and data cabling
associated with system panels and devices.
Section 280513 "Conductors and Cables for Electronic Safety and Security" for voice and
data cabling associated with system panels and devices.
DEFINITIONS
A.
BICSI: A professional association supporting the information technology systems (ITS)
industry.
B.
Cross-Connect: A facility enabling the termination of cable elements and their interconnection
or cross-connection.
C.
EMI: Electromagnetic interference.
D.
IDC: Insulation displacement connector.
E.
LAN: Local area network.
F.
Outlet/Connectors: A connecting device in the work area on which horizontal cable or outlet
cable terminates.
G.
RCDD: Registered Communications Distribution Designer.
H.
UTP: Unshielded twisted pair.
COMMUNICATIONS HORIZONTAL CABLING
271500 - 1
1.4
ADMINISTRATIVE REQUIREMENTS
A.
1.5
Coordinate layout and installation of telecommunications
telecommunications and LAN equipment and service suppliers.
cabling
with
Owner's
ACTION SUBMITTALS
A.
Product Data: Submit data for each type of product.
1.
2.
3.
4.
1.6
UTP Cables
Coax Cables
Termination Hardware
Outlet Faceplates
COORDINATION OF WORK
A.
1.7
Certain final connections and tie connections shall be made directly by the Owner or the
telecommunications company.
Coordinate with the Owner's Representative and the
telecommunications company so that the tie work and final connection can be accomplished in
an orderly and timely manner.
FINAL DRAWINGS
A.
1.8
Provide three sets of reproducible drawings showing the as-built configuration of the entire
system. This is to include site work. The drawings shall include terminal identification
numbers, locations of all devices, specifications for all devices and cable and all other
information required by the Owner for use in future tie-in work to the system installed by the
Contractor.
SERVICE MANUALS
A.
1.9
As a condition of acceptance of the work by the Owner, the Contractor shall supply three
complete sets of record drawings showing the completed work as built, operating manuals and
replacement parts lists on each piece of equipment provided, including custom-fabricated
assemblies. This information shall be suitably indexed and bound in hardback binders
permanently identified on the spine with the caption "SERVICE MANUAL TELECOMMUNICATIONS SYSTEM." These manuals to be separately bound.
TELECOMMUNICATIONS SYSTEM CONTRACTOR
A.
All telecommunications work shall be performed by qualified telecommunications personnel
regularly employed in this field.
This subcontractor must have been involved in
telecommunications systems for at least five years continuously. The telecommunications
subcontractor shall have a BICSI certified Registered Communications Distribution Designer
(RCDD) on staff. All qualifications, including the firm's facilities, shall be available for
inspection by the Owner and/or Architect.
COMMUNICATIONS HORIZONTAL CABLING
271500 - 2
B.
Provide all conduit and devices not commissioned to the telephone system subcontractor.
Coordinate all requirements for the system. The Electrical Contractor shall have overall
responsibility and shall coordinate all requirements for the system.
PART 2 - PRODUCTS
2.1
HORIZONTAL CABLING DESCRIPTION
A.
Horizontal cable and its connecting hardware provide the means of transporting signals between
the telecommunications outlet/connector and the horizontal cross-connect located in the
communications equipment room. This cabling and its connecting hardware are called a
"permanent link," a term that is used in the testing protocols.
1.
2.
3.
B.
2.2
TIA/EIA-568-C.1 requires that a minimum of two telecommunications outlet/connectors
be installed for each work area.
Horizontal cabling shall contain no more than one transition point or consolidation point
between the horizontal cross-connect and the telecommunications outlet/connector.
Bridged taps and splices shall not be installed in the horizontal cabling.
A work area is approximately 100 sq. ft., and includes the components that extend from the
telecommunications outlet/connectors to the station equipment.
UTP CABLE
A.
Description: 100-ohm, four-pair UTP, covered with a thermoplastic jacket. Color as specified.
1.
2.
3.
4.
Comply with ICEA S-90-661 for mechanical properties.
Comply with TIA/EIA-568-C for performance specifications.
Comply with TIA/EIA-568-C, Category 5e for telephone station cables and Category 6
for data station cables.
Listed and labeled by an NRTL acceptable to authorities having jurisdiction as complying
with UL 444 and NFPA 70 for the following type:
a.
B.
Cable Jacket Color:
1.
2.
3.
C.
Communications, Plenum Rated: Type CMP, complying with NFPA 262.
Telephone Station Cables: Blue
Data Station Cables: White
Where project is adding data or voice cable to the existing infrastructure, the Contractor
shall match the cable color to that which is in use. Use the cable type specified above.
UTP Cables for Telephone Use (Cat 5e). Use the following products or approved equivalent:
1.
General Cable, Cat 5e Blue Plenum Genspeed 5000
a. Part Number 5131278E
D.
UTP Cables for Data Use (Cat 6). Use the following products or approved equivalent:
COMMUNICATIONS HORIZONTAL CABLING
271500 - 3
1.
General Cable, Cat 6 White GenSpeed 6500
a. Part Number 7131931
2.3
UTP CABLE HARDWARE
A.
General Requirements for Cable Connecting Hardware: Comply with TIA/EIA-568-C, IDC
type, with modules designed for punch-down caps or tools. Cables shall be terminated with
connecting hardware of same category or higher.
B.
Connecting Blocks: 66-style IDC for Category 5e. Provide blocks for the number of cables
terminated on the block, plus 25 percent spare. Integral with connector bodies, including plugs
and jacks where indicated.
C.
Cross-Connect: Modular array of connecting blocks arranged to terminate building cables and
permit interconnection between cables.
1.
D.
Number of Terminals per Field: One for each conductor in assigned cables.
Patch Panel: Modular panels housing multiple-numbered jack units with IDC-type connectors
at each jack for permanent termination of pair groups of installed cables. The modular patch
panel shall be Category 6 compliant (as described in the ANSI/TIA/EIA-568-C) multi-port
panels with RJ-45 front panel modules on front side and incoming connection cable block
terminations on rear. Modular patch panels shall be of the same manufacturer as the modular
jack and shall be sized to accommodate the appropriate number of jacks provide patch panel for
an additional 10% jacks. The panel shall fit in a 19 inch rack and be colored black. Use the
following products or approved equivalent:
1.
Panduit:
a.
Mini-Com 24 Port 19” - Black
1)
E.
Part Number CPP24WBLY
Jacks and Jack Assemblies: Modular, color-coded, eight-position modular receptacle units with
integral IDC-type terminals. Modular jacks shall be Category 6/5e compliant (as described in
the ANSI/TIA/EIA-568-C) 8-conductor 8-position, un-keyed, and utilize IDC termination
contacts. The jack shall be terminated according to the T568B wiring standard. The jack shall
be of the appropriate category compliance to match the wire to be terminated.
1.
Use the following products or approved equivalent:
a.
Panduit:
1)
Mini-Com CAT6 RJ45 Data Jacks - Grey (Data)
a)
2)
Part number CJ688TPIG
Mini-Com CAT6 RJ45 Data Jacks - Green (Tiger Cash/Vending)
COMMUNICATIONS HORIZONTAL CABLING
271500 - 4
a)
3)
Mini-Com CAT5e RJ45 Voice Jacks – Beige
a)
2.
Part number CJ5E88TEI
Standard Jack color:
a.
b.
2.4
Part number CJ688TPGR
Telephone: Electrical Ivory
Data: Gray
COAXIAL CABLE
A.
Cable Characteristics: Broadband type, recommended by cable manufacturer specifically for
broadband data transmission applications. Coaxial cable and accessories shall have 75-ohm
nominal impedance with a return loss of 20 dB maximum from 7 to 806 MHz.
B.
RG-6/U: NFPA 70, Type CATV or CM.
1.
2.
3.
4.
5.
6.
C.
NFPA and UL compliance listed and labeled by an NRTL acceptable to authorities having
jurisdiction as complying with UL 1655 and with NFPA 70 "Radio and Television Equipment"
and "Community Antenna Television and Radio Distribution" Articles. Types are as follows:
1.
2.5
No. 18 AWG, solid, copper-covered steel conductor; gas-injected, foam-PE insulation.
Double shielded with 100 percent aluminum-foil shield and 60 percent aluminum braid.
Jacketed with black PVC or PE.
Suitable for indoor installations.
Manufacturer:
a.
Commscope/2227V-BKRL-RG6-QD
b.
Approved equal.
Plenum Rated.
CATV Plenum Rated: Type CATVP, complying with NFPA 262.
TELECOMMUNICATIONS OUTLET/CONNECTORS
A.
Workstation Outlets: Outlet faceplates shall be single gang and manufactured to accept the
modular jack specified. Unless otherwise noted on Drawings, all faceplates shall have 4-ports
minimum. Color of plate shall match the color of the outlet cover plates. Plates shall be
thermo-plastic or non-conductive flexible nylon or Lexan. Use Type 302 stainless steel or
concrete on masonry construction. Faceplates shall be equipped with blank inserts of same
color in unused port.
1.
2.
3.
Plastic Faceplate: High-impact plastic. Coordinate color with Section 262726 "Wiring
Devices."
Metal Faceplate: Stainless steel, complying with requirements in Section 262726
"Wiring Devices."
For use with snap-in jacks accommodating any combination of UTP, optical fiber, and
coaxial work area cords.
COMMUNICATIONS HORIZONTAL CABLING
271500 - 5
B.
Wall Mounted Telecommunications Outlet Faceplate. Use the following products or approved
equivalent:
1.
Panduit
a.
Mini-Com Faceplate, 4 module, Electric Ivory
1)
C.
Floor Mounted Telecommunications Outlet Faceplate
1.
2.
2.6
Part Number CFPxEI (x indicates number of spaces in faceplate. Faceplates
come in 2,4,6 position)
Provide a single gang, 4-port duplex frame. Frames shall be of the same manufacturer as
the station outlet faceplates. Provide blank inserts for all unused ports.
Manufacturer:
IDENTIFICATION PRODUCTS
A.
Comply with TIA/EIA-606-A and UL 969 for labeling materials, including label stocks,
laminating adhesives, and inks used by label printers.
B.
Comply with requirements in Section 260553 "Identification for Electrical Systems."
PART 3 - EXECUTION
3.1
ENTRANCE FACILITIES
A.
3.2
Coordinate backbone cabling with the protectors and demarcation point provided by
communications service provider.
WIRING METHODS
A.
Install cables in pathways and cable trays except within consoles, cabinets, desks, and
counters and except in accessible ceiling spaces and in gypsum board partitions where
unenclosed wiring method may be used. Conceal pathways and cables except in unfinished
spaces.
1.
2.
3.
B.
3.3
Install plenum cable.
Comply with requirements in Section 270528 "Pathways for Communications Systems."
Comply with requirements in Section 270536 "Cable Trays for Communications
Systems."
Conceal conductors and cables in accessible ceilings, walls, and floors where possible.
INSTALLATION OF CABLES
COMMUNICATIONS HORIZONTAL CABLING
271500 - 6
A.
Comply with NECA 1.
B.
All cable shall be neatly arranged and all work performed according to telecommunications
industry standard practices and to the User Agency's satisfaction. Provide knobs and ties such
that wiring is neatly arranged and can be easily modified. All work shall be tied and neatly
routed to the terminal blocks. All conduit ends and junction box connections shall use insulated
bushings. All telecommunications cable, except for plenum cable, to be 24 gauge minimum,
copper as specified above, with PVC jacket, REA Specification approved.
C.
General Requirements for Cabling:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
D.
Comply with TIA/EIA-568-C.
Comply with BICSI TDMM, Ch. 4 "Horizontal Distribution Systems".
Terminate conductors; no cable shall contain non terminated elements. Make
terminations only at indicated outlets, terminals, cross-connects, and patch panels.
Cables may not be spliced. Secure and support cables at intervals not exceeding 30
inches and not more than 6 inches from cabinets, boxes, fittings, outlets, racks, frames,
and terminals.
Install lacing bars to restrain cables, to prevent straining connections, and to prevent
bending cables to smaller radii than the minimum recommended by the manufacturer.
Bundle, lace, and train conductors to terminal points without exceeding manufacturer's
limitations on bending radii, but not less than radii specified in TDMM, Ch. 4,
"Horizontal Distribution Systems."
Install lacing bars and distribution spools.
Do not install bruised, kinked, scored, deformed, or abraded cable. Do not splice cable
between termination, tap, or junction points. Remove and discard cable if damaged
during installation and replace it with new cable.
In the communications equipment room, install a 10-foot- long service loop on each end
of cable.
Pulling Cable: Comply with BICSI TDMM, Ch. 4 "Horizontal Distribution Systems".
Monitor cable pull tensions.
UTP Cable Installation:
1.
2.
3.
4.
Comply with TIA/EIA-568-C.
Do not untwist UTP cables more than 1/2 inch from the point of termination to maintain
cable geometry.
All riser cable shall be installed in conduit. Telecommunications station cable shall be
installed in conduit where routed in walls, floors, and inaccessible ceilings.
Telecommunications station cable shall be permitted to run without conduit where routed
in the cable tray system or where routed concealed in above accessible ceilings. Use
plenum rated cable.
For cable not installed horizontally in conduit, support exposed cable in accessible ceiling
space at least every five feet using industry standard J-hooks. Mount as high as possible
next to floor/roof deck. Do not install J-hooks directly above a work area outlet or
adjacent to mechanical or electrical equipment requiring service access. Install cable
such that minimum bend radius of 4-times cable diameter is never exceeded. Do not
tightly bundle cable together. Do not use draw band tie-wraps. Do not support from
conduit, joists, ductwork directly. Use only the J-hooks. All wiring must be
independently supported and routed so as to avoid access points to other equipment and
permit servicing. Unacceptable wiring practices shall be deemed unacceptable and shall
COMMUNICATIONS HORIZONTAL CABLING
271500 - 7
5.
6.
7.
8.
be removed and replaced.
Run cable in continuous link from closet to work area outlet, no splices. Do not exceed
295 foot cable length for station cable. Do not exceed 25 lb. maximum pull tension.
Leave at least ten feet spare cable at each end.
Pathway should cross perpendicular to fluorescent lighting and power cables.
For inaccessible ceiling spaces, install conduit raceway system with conduit fill ratio 28%
or less. No more than two 90° bends between pull points. Bond all conduits to the
communications bonded grounding system. Conduit bend radius 6-times conduit
diameter for conduit 2 inches or less, 10-times conduit for conduit greater than 2 inches.
LBs are not allowed in communications pathway distribution system.
Services between Telecommunications Closet and Telecommunications Outlet
a.
9.
10.
Standard Horizontal Distribution runs shall consist of TWO plenum rated Category
6 compliant (as described in the ANSI/TIA/EIA-568-C) four-paired unshielded
twisted pair cables, blue in color and ONE plenum rated Category 5E compliant
four-paired unshielded twisted pair cables, white in color.
The Contractor shall maintain recommended bending radius, pulling tension and cable
support requirements. All cables, wires and equipment shall be securely and neatly
installed. Inside routing shall be installed parallel and perpendicular to existing structural
lines and members. Cable ties may be used but shall be installed finger tight. (By finger
tight, installer must be able to insert his or her small finger into the cable tie with the
cable bundle.)
All horizontal distribution runs shall work together to create a Permanent Link Solution
for wire and jack combination. A Permanent Link solution is a pairing of wire and jack
tested together to produce optimum efficiency and throughput. The permanent link
solution will be tested as a complete assembly from the telecommunications outlet to the
patch panel interface. This Contractor shall also provide a suitable patch cord for each
data jack location.
E.
The maximum allowable horizontal cable length is 295 feet.
F.
Open-Cable Installation:
1.
2.
3.
G.
Install cabling with horizontal and vertical cable guides in telecommunications spaces
with terminating hardware and interconnection equipment.
Suspend UTP cable not in a wireway or pathway a minimum of 8 inches above ceilings
by cable supports not more than 60 inches apart.
Cable shall not be run through structural members or in contact with pipes, ducts, or other
potentially damaging items.
Installation of Cable Routed Exposed under Raised Floors:
1.
2.
Install plenum-rated cable only.
Install cabling after the flooring system has been installed in raised floor areas.
H.
In TR group connecting hardware for cables into separate logical fields. See Appendix A
Figure 3 & 4 for phone and mount date in patch panels in relay racks. At workstation outlet see
Appendix A Figure 6 for all cable.
I.
Separation from EMI Sources:
COMMUNICATIONS HORIZONTAL CABLING
271500 - 8
1.
2.
3.
4.
5.
3.4
Comply with BICSI TDMM and TIA-569-B for separating unshielded copper voice and
data communication cable from potential EMI sources, including electrical power lines
and equipment.
Separation between conduit and cables used for electrical power: A minimum of 12
inches.
Separation between light fixtures: A minimum of 18 inches.
Separation between Communications Cables and Electrical Motors and Transformers, 5
kVA or HP and Larger: A minimum of 48 inches.
Separation between Communications Cables and Fluorescent Fixtures: A minimum of 5
inches.
FIRESTOPPING
A.
Comply with requirements in Section 078413 "Penetration Firestopping."
B.
Comply with TIA-569-B, Annex A, "Firestopping."
C.
Comply with BICSI TDMM, Ch. 7 "Firestopping".
3.5
GROUNDING
A.
Comply with requirements in Section 260526 "Grounding and Bonding for Electrical Systems"
for grounding conductors and connectors.
B.
Comply with ANSI-J-STD-607-A.
3.6
FIELD QUALITY CONTROL
A.
Testing Agency: Engage a qualified testing agency to perform tests and inspections.
B.
Manufacturer's Field Service: Engage a factory-authorized service representative to test and
inspect components, assemblies, and equipment installations, including connections.
C.
Perform the following tests and inspections with the assistance of a factory-authorized service
representative:
1.
2.
3.
4.
Visually inspect UTP cable jacket materials for NRTL certification markings. Inspect
cabling terminations in communications equipment rooms for compliance with colorcoding for pin assignments, and inspect cabling connections for compliance with
TIA/EIA-568-C.
Visually confirm Category 5e and Category 6, marking of outlets, cover plates,
outlet/connectors, and patch panels.
Visually inspect cable placement, cable termination, grounding and bonding, equipment
and patch cords, and labeling of all components.
UTP Performance Tests:
a.
Test for each outlet. Perform the following tests according to TIA/EIA-568-C.
COMMUNICATIONS HORIZONTAL CABLING
271500 - 9
1)
Category 6 Cable:
a)
2)
All Category 6 distribution cables will be tested in accordance with
procedures outlined in ANSI/EIA/TIA-568-C for the Permanent Link.
Written test results for each cable shall include all four of the primary
field test parameter results. Any cable that fails testing shall be
reported along with the procedures used to rectify the failure (i.e.,
replaced cable, re-terminated jack, etc.). Contractor tests shall utilize
a Category 6 Level III compliant cable tester as described in
ANSI/TIA/EIA-568-C. Electronic results for each UTP Category 6,
4-pair cable will be submitted as part of the Contractor's "As-Built"
project performance acceptance records. In addition to the above
information, the documentation will also include a pass/fail indication
for the specified cable, the test date, the serial number and software
version of the scanner, and a copy of the calibration certificate for the
scanner. Necessary applications for reading the results will be
provided by the requirements refer to ANSI/TIA/EIA-568-C.
Category 5E Cable:
a)
All Category 5E distribution cables will be tested in accordance with
procedures laid out in TIA/EIA-568-C for the basic link. Written test
results for each cable shall include all four of the primary field test
parameter results. Any cable that fails testing shall be reported along
with the procedures used to rectify the failure (i.e., replaced cable,
replaced jack, etc.). Contractor tests shall utilize a Category 5E Level
II compliant cable tester. Electronic results for each UTP Category
5E four-pair cable will be submitted as part of the Contractor's "AsBuilt" project performance acceptance records. In addition to the
above information, the documentation will also include a pass/fail
indication for the specified cable, the test date, the serial number and
software version of the scanner, and a copy of the calibration
certificate for the scanner. Necessary applications for reading the
results will be provided by the requirements refer to ANSI/TIA/EIA569-B.
D.
Document data for each measurement. Data for submittals shall be printed in a summary report
that is formatted for a ‘Class 3’ administration system as outlined in the BICSI TDMM, Ch. 10
“Telecommunication Administration”. Data may be transferred from the instrument to the
computer, saved as text files, and printed and submitted.
E.
End-to-end cabling will be considered defective if it does not pass tests and inspections.
F.
Prepare test and inspection reports.
END OF SECTION 271500
COMMUNICATIONS HORIZONTAL CABLING
271500 - 10